/* ═══════════════════════════════════════════════════════════════════
   TOPBAR — css/components/topbar.css
   ═══════════════════════════════════════════════════════════════════
   Two rows:
   Row 1 — page title, live date/time, install-app button, notification
           bell, user menu (with the Profile / Change Password /
           Biometrics / Theme / Settings / Help / Sign out dropdown).
   Row 2 — the academic period status strip: year, term, term-progress
           bar, phase badge, days remaining. Driven by the same
           Year/Term selector in the sidebar (Rule #9) via the
           `academicPeriodChanged` event — see js/ui/topbar.js.
   ═══════════════════════════════════════════════════════════════════ */

.topbar {
    background: var(--topbar-bg);
    border-bottom: 1px solid var(--topbar-border);
    padding: 10px 28px 8px;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.03), 0 4px 24px rgba(0, 0, 0, 0.15);
    animation: topbarFadeIn 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes topbarFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .topbar {
        animation: none;
    }
}

.topbar-row1 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 44px;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 14px;
    flex: 1;
    min-width: 0;
}

.topbar-center {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

/* Hamburger — mobile only, toggles the sidebar */
.hamburger-btn {
    display: none;
    width: 38px;
    height: 38px;
    border-radius: var(--radius);
    border: 1px solid var(--topbar-border);
    background: var(--topbar-hover);
    color: var(--topbar-text-muted);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
    font-size: 16px;
    flex-shrink: 0;
}

.hamburger-btn:hover {
    color: var(--topbar-text);
}

.hamburger-btn:active {
    transform: scale(0.95);
}

/* Page title */
.page-title-group {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.page-title {
    font-family: 'Syne', sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: var(--topbar-text);
    letter-spacing: -0.3px;
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.page-title .highlight {
    color: var(--accent);
}

.page-subtitle {
    font-size: 11px;
    color: var(--topbar-text-dim);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Live date/time pill */
.date-display {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--topbar-hover);
    padding: 4px 14px 4px 12px;
    border-radius: 99px;
    border: 1px solid var(--topbar-border);
}

.date-display .date-icon {
    color: var(--topbar-text-dim);
    font-size: 13px;
    opacity: 0.6;
}

.date-display .date-text {
    font-size: 13px;
    font-weight: 500;
    color: var(--topbar-text-muted);
}

.date-display .date-text .day {
    color: var(--topbar-text);
}

.date-display .date-text .year {
    color: var(--topbar-text-dim);
}

.date-display .divider {
    width: 1px;
    height: 16px;
    background: var(--topbar-border);
}

.date-display .time-text {
    font-size: 12px;
    font-weight: 500;
    color: var(--topbar-text-dim);
    font-variant-numeric: tabular-nums;
}

/* Install-app button (PWA) */
.install-btn {
    display: none;
    align-items: center;
    gap: 8px;
    padding: 6px 14px 6px 12px;
    border-radius: 99px;
    border: 1px solid var(--topbar-border);
    background: var(--accent-glow, rgba(59, 130, 246, 0.18));
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
}

.install-btn:hover {
    background: rgba(59, 130, 246, 0.24);
    border-color: var(--accent);
    transform: translateY(-1px);
}

.install-btn.show {
    display: flex;
}

/* Generic icon button (notification bell, etc) */
.icon-btn {
    width: 38px;
    height: 38px;
    border-radius: var(--radius);
    border: 1px solid var(--topbar-border);
    background: transparent;
    color: var(--topbar-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    font-size: 15px;
}

.icon-btn:hover {
    background: var(--topbar-hover);
    color: var(--topbar-text);
}

.icon-btn:active {
    transform: scale(0.95);
}

.icon-btn .notif-count {
    position: absolute;
    top: -4px;
    right: -4px;
    font-size: 9px;
    font-weight: 700;
    background: var(--danger);
    color: var(--text-inverse, #f1f5f9);
    min-width: 18px;
    height: 18px;
    border-radius: 99px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--topbar-bg);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.icon-btn .notif-count.hidden {
    transform: scale(0);
}

/* User menu trigger */
.user-menu {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 3px 14px 3px 3px;
    border-radius: 99px;
    border: 1px solid var(--topbar-border);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
}

.user-menu:hover {
    background: var(--topbar-hover);
}

.user-menu .user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1a3a5c, var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: var(--accent-light, #60a5fa);
    flex-shrink: 0;
    border: 1.5px solid rgba(255, 255, 255, 0.08);
}

.user-menu .user-info .name {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--topbar-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100px;
}

.user-menu .user-info .role {
    font-size: 9.5px;
    font-weight: 500;
    color: var(--topbar-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.user-menu .chevron {
    width: 10px;
    height: 10px;
    color: var(--topbar-text-dim);
    transition: transform var(--transition);
    margin-left: 2px;
}

.user-menu.open .chevron {
    transform: rotate(180deg);
}

/* Dropdown (shared shape used by user menu; notification panel reuses
   the same visual language via .dropdown--wide in ui/dropdowns.css) */
.dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 230px;
    background: var(--dropdown-bg);
    border: 1px solid var(--dropdown-border);
    border-radius: var(--radius);
    padding: 6px 0;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.97);
    transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
    z-index: 200;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.dropdown-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px 8px;
    margin-bottom: 4px;
}

.dropdown-header .user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1a3a5c, var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--accent-light, #60a5fa);
    flex-shrink: 0;
    border: 1.5px solid rgba(255, 255, 255, 0.08);
}

.dropdown-header .user-info .name {
    font-size: 13px;
    font-weight: 600;
    color: var(--topbar-text);
    line-height: 1.2;
}

.dropdown-header .user-info .role {
    font-size: 10px;
    font-weight: 500;
    color: var(--topbar-text-dim);
    text-transform: capitalize;
    letter-spacing: 0.5px;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    font-size: 12.5px;
    color: var(--dropdown-text);
    cursor: pointer;
    transition: all 0.15s;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    font-family: inherit;
}

.dropdown-item:hover {
    background: var(--dropdown-hover);
    color: var(--topbar-text);
}

.dropdown-item .icon {
    font-size: 14px;
    width: 20px;
    text-align: center;
    opacity: 0.7;
}

.dropdown-item .label {
    flex: 1;
}

.dropdown-item .shortcut {
    font-size: 9px;
    color: var(--topbar-text-dim);
    background: var(--topbar-hover);
    padding: 1px 6px;
    border-radius: 4px;
}

.dropdown-item.danger {
    color: var(--danger);
}

.dropdown-item.danger:hover {
    background: rgba(var(--danger-rgb, 239, 68, 68), 0.08);
    color: var(--danger);
}

.dropdown-divider {
    height: 1px;
    background: var(--dropdown-border);
    margin: 4px 12px;
}

/* ── Row 2 — academic period status strip ── */
.topbar-row2 {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 6px;
    padding-top: 8px;
    border-top: 1px solid var(--topbar-border);
    flex-wrap: wrap;
}

.year-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--topbar-text-dim);
}

.year-badge strong {
    color: var(--topbar-text);
    font-weight: 600;
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

.status-dot.active {
    background: var(--success);
    animation: statusDotPulse 2s ease-in-out infinite;
}

.status-dot.inactive {
    background: var(--topbar-text-dim);
}

.status-dot.locked {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--warning);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--topbar-bg);
}

.status-dot.locked svg {
    width: 8px;
    height: 8px;
}

@keyframes statusDotPulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.35;
        transform: scale(0.7);
    }
}

.term-badge {
    font-size: 12px;
    font-weight: 600;
    color: var(--topbar-text-dim);
    padding: 3px 12px;
    border-radius: 99px;
    background: var(--topbar-hover);
    border: 1px solid var(--topbar-border);
}

.term-badge strong {
    color: var(--topbar-text);
}

.progress-container {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 140px;
    max-width: 300px;
}

.progress-container .progress-bar {
    flex: 1;
    height: 4px;
    background: var(--topbar-hover);
    border-radius: 99px;
    overflow: hidden;
}

.progress-container .progress-bar .progress-fill {
    height: 100%;
    border-radius: 99px;
    background: linear-gradient(90deg, var(--accent), var(--success));
    transition: width 0.8s cubic-bezier(0.22, 1, 0.36, 1);
    width: 0%;
}

.progress-container .progress-fill.is-locked {
    background: var(--warning);
}

.progress-container .progress-text {
    font-size: 11px;
    font-weight: 600;
    color: var(--topbar-text-dim);
    min-width: 36px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.phase-badge {
    font-size: 10px;
    font-weight: 600;
    padding: 3px 12px;
    border-radius: 99px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--accent-glow, rgba(59, 130, 246, 0.18));
    color: var(--accent);
    border: 1px solid rgba(var(--accent-rgb, 59, 130, 246), 0.15);
    white-space: nowrap;
}

.phase-badge.pre {
    background: rgba(var(--success-rgb, 16, 185, 129), 0.1);
    color: var(--success);
    border-color: rgba(var(--success-rgb, 16, 185, 129), 0.15);
}

.phase-badge.post {
    background: rgba(var(--warning-rgb, 245, 158, 11), 0.1);
    color: var(--warning);
    border-color: rgba(var(--warning-rgb, 245, 158, 11), 0.15);
}

.phase-badge.complete {
    background: rgba(var(--success-rgb, 16, 185, 129), 0.08);
    color: var(--success);
    border-color: rgba(var(--success-rgb, 16, 185, 129), 0.1);
}

.phase-badge.upcoming {
    background: rgba(255, 255, 255, 0.03);
    color: var(--topbar-text-dim);
    border-color: rgba(255, 255, 255, 0.05);
}

.phase-badge.locked {
    background: rgba(var(--warning-rgb, 245, 158, 11), 0.08);
    color: var(--warning);
    border-color: rgba(var(--warning-rgb, 245, 158, 11), 0.1);
}

.days-remaining {
    font-size: 11px;
    font-weight: 500;
    color: var(--topbar-text-dim);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 4px;
}

.days-remaining strong {
    color: var(--topbar-text-muted);
    font-weight: 600;
}

.days-remaining svg {
    width: 12px;
    height: 12px;
    opacity: 0.6;
}

/* ─────────────────────────────────────────────────────────────────
   RESPONSIVE
   ───────────────────────────────────────────────────────────────── */

@media (max-width: 1024px) {
    .topbar {
        padding: 10px 20px 8px;
    }

    .page-title {
        font-size: 16px;
    }

    .progress-container {
        max-width: 200px;
    }
}

@media (max-width: 820px) {
    .hamburger-btn {
        display: flex;
    }

    .topbar {
        padding: 8px 16px 6px;
    }

    .topbar-row1 {
        min-height: 38px;
    }

    .page-title {
        font-size: 15px;
    }

    .page-subtitle {
        font-size: 10px;
    }

    .date-display {
        padding: 3px 10px 3px 8px;
    }

    .date-display .date-text {
        font-size: 12px;
    }

    .date-display .time-text {
        font-size: 11px;
    }

    .user-menu .user-info .name {
        max-width: 70px;
        font-size: 11px;
    }

    .user-menu .user-info .role {
        font-size: 8px;
    }

    .user-menu {
        padding: 2px 10px 2px 2px;
    }

    .user-menu .user-avatar {
        width: 28px;
        height: 28px;
        font-size: 10px;
    }

    .icon-btn {
        width: 34px;
        height: 34px;
        font-size: 13px;
    }

    .topbar-row2 {
        gap: 10px;
        margin-top: 4px;
        padding-top: 6px;
    }

    .year-badge {
        font-size: 11px;
    }

    .term-badge {
        font-size: 11px;
        padding: 2px 10px;
    }

    .progress-container {
        min-width: 100px;
        max-width: 160px;
    }

    .progress-container .progress-text {
        font-size: 10px;
        min-width: 30px;
    }

    .phase-badge {
        font-size: 9px;
        padding: 2px 10px;
    }

    .days-remaining {
        font-size: 10px;
    }
}

@media (max-width: 640px) {
    .topbar {
        padding: 6px 12px 4px;
    }

    .topbar-row1 {
        min-height: 32px;
        gap: 10px;
    }

    .hamburger-btn {
        width: 30px;
        height: 30px;
        font-size: 12px;
    }

    .page-title {
        font-size: 13px;
    }

    .page-subtitle {
        display: none;
    }

    .date-display .date-text .year {
        display: none;
    }

    .date-display .divider {
        display: none;
    }

    .date-display .date-text {
        font-size: 11px;
    }

    .date-display .time-text {
        font-size: 10px;
    }

    .user-menu .user-info .name,
    .user-menu .user-info .role {
        display: none;
    }

    .user-menu {
        padding: 3px 8px 3px 3px;
        gap: 4px;
    }

    .user-menu .user-avatar {
        width: 26px;
        height: 26px;
        font-size: 9px;
    }

    .user-menu .chevron {
        margin-left: 0;
    }

    .icon-btn {
        width: 30px;
        height: 30px;
        font-size: 12px;
    }

    .icon-btn .notif-count {
        font-size: 7px;
        min-width: 14px;
        height: 14px;
        top: -3px;
        right: -3px;
    }

    .dropdown {
        min-width: 190px;
        right: -10px;
    }

    .topbar-row2 {
        gap: 6px;
        margin-top: 2px;
        padding-top: 4px;
    }

    .year-badge,
    .term-badge {
        font-size: 10px;
    }

    .term-badge {
        padding: 2px 8px;
    }

    .progress-container {
        min-width: 80px;
        max-width: 120px;
    }

    .progress-container .progress-text {
        font-size: 9px;
        min-width: 24px;
    }

    .phase-badge {
        font-size: 8px;
        padding: 2px 8px;
    }

    .days-remaining {
        font-size: 9px;
    }

    .install-btn {
        font-size: 10px;
        padding: 4px 10px 4px 8px;
    }
}

@media (max-width: 480px) {
    .topbar-row2 {
        flex-wrap: wrap;
    }

    .progress-container {
        min-width: 60px;
        max-width: 80px;
    }

    .days-remaining {
        display: none;
    }

    .date-display .date-text .day {
        display: none;
    }

    .date-display .date-text {
        font-size: 10px;
    }
}